Internal-combustion engine.



E. G. BOGUSP.' IITERNL OMBUSTION ENGINE. MPLIQATIOH FILED um so, 191s,

Pavtented 0011.28, 1913.

v v gym.

out-let. port UNITED sri-urns PATENT OFFICE.

EMIL GUSTAVE BoGuscH, oF-LLANo, TEXAS, AssIGNoR oFoNE-HALF 'ro M. D.sLa'ron,

or LLANO, TEXAS.

INTERNAL-COMBUSTION ENGINE.

l have devised an improved construction,

arrangement, and combination of -parts whereby certain advantages areobtained.

The invention is hereinafter described with reference to theaccompanying drawings in which- Figure 1 is a central vertical sectionof the entire engine, showing the pistons in the position they occupywhen the explosive mixture is ignited by a spark plug. Fig. 2 is asimilar section showing the pistons separated-from'each other to nearthe limit of their strokes. Fig. 3 is across section taken at rightangles to Figs. l and 2 and showing the pistons separated their@ fullestextent. Fig. 4 is a vertical section taken at right angles to thesection shown in Fig. 3. F-ig. 5 detail view illustrating ai certainposition of a valve.

The upper portioinof the engineacasing 1 is provided with spaces 2 forwater-jacket,- ing in the usual way, and the lower portion 2. ot' theeasing is constructed to form a crank ease.

'l`he casing 1 has a lateral air-inlet port-4,

and, on the opposite side, near the upper end ot' the piston,4 there isla narrow air- 'lhe latter communicates with a by-pass 6 having a rotarytwo-way valve i". The function and operation of these parts will bepresently described.

Within the easing vare two elongated hollow cylindrical pistons 8 and 9arranged lelescopically, that. is to say, one being slidable within theother, and both are connected by pitlncn 10 and 11 with the cranks 151*and l1n ot a rotary shaft journaled in the case 3. The outer piston 9is'provided near the top with a lateral port 13-see y Suecication ofLetters Patent. Application filed April 30, 1913. Serial No.f764,559. v

Patented oet. 2s, 1913.

Figs.l and B-and `near its lower enlarged end with a port 14-see Figs.2,3 and 4.

In the operation of the engine, the upper port 13 registers at eachstroke of piston 9 with the loy-pass 6, and thelower port 14 registerssimilarly witha lateral passage 15 m the casing l'which serves forexhaust of burned or spent gases.

At,` a point nearly opposite' the exhaust port 14, the outerpiston 9 isprovided with a port :1G-see Figs. 1, 2V and 4, and such portisiextended upward in the enlarged or thickened base portion-of thepiston, as indicated at 16, so as to communicate with a gas compressingchamber 17 formed between t-he abutment or shoulder 19 of the piston 9and the corres onding shoulder 19u of the casing l. The atter isprovided at 18 with a lateral port for adniission'of the ignitiblemixture tothe space17.

At a point above the middle of the casing 1, a spark plug20 is` locatedand adapted Ato registerwith the port 13 ofthe outer piston 9 when theistons are 4in the position shown in Fig. 1,111 vwhich instance theexplosive mixture is compressed between their heads.

Ihe general operation of the engine may now be understood.

When the pistons are in the position of nearest approximation. asin Fig.1, the explosive mixture'compressed between their heads is fired by thespark plug' 20 and the pistonspseparate, as illustratial in Figs. 2 and4. When the pistons are in the position shown in Fig. 1, thexplosivemixture is admitted through port 18 to the annular space orchamber 17,'and as the outerpiston moves upward, the mixture iscompressed between the shoulder or abutment 19 of the piston 9 andthe-shoulder 19 of the casingr 1, since such shoulders or abutmentsapproach each other, as shownin Figs. 2 and 4. 'lhe previous chargecompressed between theheads otthe pistons, wherein thel positionindicated in Fig. 1, being ignited by thesparkplug. the pistons separateand as the. inner piston 8 descends to the position shown in F ig. 2.the exhaust port 14 is' uncovered and the burned gases escape. lt.

will be noted that at this instant', the lateral.

port 16 of the, outer piston is not umzovered, but in the furtherseparation of the pistons, as indicated 1n Fig. 4, this occurs` and' thegaseous mixture previously compressed inI -piston 9 registersWithby-pass 6, as shown g l normes the chamberA 17 discharges into theouterl piston at an upward angle, as indicated by dotted lines in Fig..4.v v

In the it'uitliel' rotation of the crank shaft, the exhaust ift isclosed so quickly that the gas mi;v iure iilling the chamber of theouter piston is confined and compressed `until the port lf3 of the outerpiston again registers with the spark plug, as shown in Fig. l, at whichtime it is ignited.

VThe operation of the' engine in respect to the air 'ports '4t and 5,by-pass 6, and valve 7 in connection with the pistons will now bebriefly indicated. Assuming the valve 7 is in the position shown inFigs. l, 2 and 4, when the outer piston 9 is at its outer point as shownin Fig. l, the lateral port 4 is entirely uncovered and air'has freeadmission; but as the piston 9 ascends, such admission lis cutofi andthe charge of air taken in is compressed and at the same time port 13 inin Fig. 2, and the compressed air' then. discharges through thelbypassand the ,valve into the space between the pistons 8 and 9, thus aidingin complete exhaust of the `burned gases through: the registering portsor passages 14 and l5. If,'however, the `valve 7 be manually adjusted,that is to say, turned half around to the position shownin Fig. 5, itestablishes communication between the lateral port 'and Ithe upper legof the bypass, so that at the ,next reciprocation ofthe piston 9, thecharge of air taken .in at +L is forced out through the'ports 6 and 5and may be utilized for expanding tires of autos or stored in a tankunder compression, for subsequent use. Thus itl will be seeny that thisportion of the appamiddle portion; two telescopic pistons and a crankshaft with which they are connected so as to .reciprocate in oppositedirections,` the outer 'piston having an ignition openl ing in its upperportion and lateral ports in its lower portion for communication withthe inlet and exhaust ports of the casing, the upper portion of thecasing havin a lateral air inlet and discharge, also aA yf passcommunicating with the` discharge opening, and a rotary two-Way valvearranged in said by-pass for controlling admission of compressed airinto the space between the pistons for aiding in expulsion of burnedgases or directing such air to the lateral discharge, the ignitionopening in vthe outer piston being adapted in one position of saidpiston to register with the aforesaid by-pass. as described. EMILGUSTAVE BOGUSCH.4 fitnesses MYRoN JoHNsoN, F. K. LANGE.

